Merge pull request #1364 from asger-semmle/typescript-change-note

Approved by esben-semmle

Author: semmle-qlci

change-notes/1.21/analysis-javascript.md

@@ -19,6 +19,9 @@
 
 * TypeScript 3.4 features are now supported.
 
+* On LGTM, TypeScript projects now have static type information extracted by default, resulting in more security results.
+  Users of the command-line tools must still pass `--typescript-full` to the extractor to enable this.
+
 
 ## New queries